On Nov 17, 2011, at 5:37 AM, Axel Rauschmayer wrote:
> [cc-ing es-discuss again]
>
> On Nov 17, 2011, at 14:20 , Russell Leggett wrote:
>
>> If <| changed to allow non-literal RHS values, I could see it getting more
>> use
>>
>> obj <| comparable <| enumerable <| {...}
>>
>> but right now, that has a big hurdle and I've yet to see anybody but me
>> propose a solution.
Allen's semantics for <| depends on the RHS being a literal, because it infers
the [[Class]] and such from the literal, and because it takes any private names
from the object literal form.
> True, that’s the catch. Then it works for composing an inheritance hierarchy
> (as in mixins as abstract subclasses).
>
> Another idea for `extends` (if there is more than one object that is being
> extended):
>
> extends(comparable, enumerable, foo, bar) { ... }
I'm not sure what the semantics of this would be. Are you inventing
multiple-prototype inheritance? That's not going to happen.
Dave
_______________________________________________
es-discuss mailing list
es-discuss@mozilla.org
https://mail.mozilla.org/listinfo/es-discuss
